CN105038434A - Gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film - Google Patents
Gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film Download PDFInfo
- Publication number
- CN105038434A CN105038434A CN201510478694.4A CN201510478694A CN105038434A CN 105038434 A CN105038434 A CN 105038434A CN 201510478694 A CN201510478694 A CN 201510478694A CN 105038434 A CN105038434 A CN 105038434A
- Authority
- CN
- China
- Prior art keywords
- film
- polypropylene
- dielectric film
- preparation
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The invention relates to the field of dielectric film material preparation, in particular to a gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and a preparation method of the gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film. A polypropylene film with the thickness smaller than or equal to 5 micrometers serves as a base film of the composite film. The surface of the base film is coated with a ferrocene-doped and gas-phase-aluminum-oxide-doped cellulose acetate/polyvinylidene chloride composite coating with the thickness smaller than or equal to 5 micrometers. Prepared coating liquid has a high film-forming property and a high rheological property. The polypropylene film combinability of the coating liquid is high. The dried coating is excellent in mechanical property, compact, smooth, slippery, breathable, not prone to cracking failure under the high-temperature condition, and has a high dielectric constant and low dielectric loss. The advantages of organic/inorganic dielectric materials are fully combined, the production and preparation process is simple, and the gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film is suitable for large-scale production and can be used for producing miniaturized, high-capacity and light film capacitors.
Description
Technical field
The present invention relates to dielectric film material preparation field, be specifically related to polypropylene-base compound dielectric film of a kind of membrane capacitance blending gas phase aluminium sesquioxide and preparation method thereof.
Background technology
Film capacitor, also known as plastic film capacitor, is that in all film capacitors, polypropylene capacitor is most widely used in actual use with the advantage of its uniqueness using plastics film as a dielectric class electrical condenser.Along with the development of industry, the requirement of electronic product to performances such as electrical condenser lightweight, heavy body is more and more higher, but the specific inductivity of polypropylene film is on the low side, is difficult to make high performance electrical condenser, governs the application of polypropylene capacitor.
Commonly at present mainly in polypropylene, fill the organic of high-k or mineral compound for the method improving polypropylene film specific inductivity, organic dielectric materials snappiness is good, the advantages such as easy machine-shaping, but there is the shortcoming such as non-refractory, less stable, and the defect of Inorganic Dielectric Material is that film processing properties is poor, and dielectric loss increases.Therefore, research and development one roughly the same time possess inorganic/organic dielectric materials advantage composite dielectric material be the development trend of industry, be also the potential research direction widening polypropylene film capacitor.
Summary of the invention
The object of the invention is to, provide polypropylene-base compound dielectric film of a kind of membrane capacitance blending gas phase aluminium sesquioxide and preparation method thereof, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of polypropylene-base compound dielectric film of membrane capacitance blending gas phase aluminium sesquioxide, it is characterized in that, this dielectric film with thickness≤5 μm polypropylene film for basement membrane, and the compound coating in membrane surface coating thickness≤5 μm, described compound coating is made up of the raw material of following weight part: cellulose acetate 2-3, ferrocene 1-2, gas phase aluminium sesquioxide 3-5, alcohol ether solvent 10-15, polyether modified silicon oil 0.1-0.2, polyvinylpyrrolidone 1-2, N,N-dimethylacetamide 20-25, Macrogol 4000 .3-0.5, polyvinylidene chloride 10-12.
Polypropylene-base compound dielectric film of described a kind of membrane capacitance blending gas phase aluminium sesquioxide and preparation method thereof, it is characterized in that, described preparation method is:
(1) preparation of composite coating liquid: first poly(oxyethylene glycol) 400 is dropped in alcohol ether solvent, heated and stirred makes it dissolve completely, drop in solution by ferrocene, gas phase aluminium sesquioxide subsequently, ultrasonic agitation dispersion makes powder be uniformly dispersed completely, and gained dispersion liquid is for subsequent use; Then polyvinylidene chloride, cellulose acetate are dropped into N, in N-N,N-DIMETHYLACETAMIDE, heated and stirred makes solid substances dissolve completely, add the dispersion liquid of previously preparation again, after being uniformly mixed 20-30min, add other leftover materials, be uniformly mixed disposed slurry ball-milling processing 30-40min, and mixed slurry is carried out de-bubble process, obtain cellulose acetate/polyvinylidene chloride composite coating liquid for subsequent use;
(2) composite coating liquid step (1) prepared utilizes and reverses the two sides of roller kiss-type coating method even spread to polypropylene film, and utilize warm air drying and method for far-infrared drying simultaneously, drying treatment under 80-120 DEG C of condition, must this polypropylene-base compound dielectric film after complete drying.
Compound dielectric film advantage prepared by the present invention is: blending ferrocene, cellulose acetate/polyvinylidene chloride the composite coating liquid of gas phase aluminium sesquioxide has good film-forming properties and rheological, strong with polypropylene film bonding force, gained coating good mechanical performance after it is dry, fine and close smooth, smooth ventilative, not easily Cracking Failure under the high temperature conditions, and there is higher specific inductivity and lower dielectric loss, combine the advantage of organic/inorganic dielectric material fully, and manufacture process is simple, be applicable to scale operation, can be used for production miniaturization and high capacity, light-weighted membrane capacitance.
Embodiment
Embodiment
Polypropylene film thickness in the present embodiment is 5 μm, compound coating thickness is 5 μm, wherein compound coating is made up of following raw material: cellulose acetate 2.5, ferrocene 1.5, gas phase aluminium sesquioxide 4, alcohol ether solvent 14, polyether modified silicon oil 0.2, polyvinylpyrrolidone 1.5, N,N-dimethylacetamide 22, Macrogol 4000 .3, polyvinylidene chloride 10.
The preparation method of the polypropylene-base compound dielectric film of described a kind of membrane capacitance blending gas phase aluminium sesquioxide is:
(1) preparation of composite coating liquid: first poly(oxyethylene glycol) 400 is dropped in alcohol ether solvent, heated and stirred makes it dissolve completely, drop in solution by ferrocene, gas phase aluminium sesquioxide subsequently, ultrasonic agitation dispersion makes powder be uniformly dispersed completely, and gained dispersion liquid is for subsequent use; Then polyvinylidene chloride, cellulose acetate are dropped into N, in N-N,N-DIMETHYLACETAMIDE, heated and stirred makes solid substances dissolve completely, add the dispersion liquid of previously preparation again, after being uniformly mixed 25min, add other leftover materials, be uniformly mixed disposed slurry ball-milling processing 35min, and mixed slurry is carried out de-bubble process, obtain cellulose acetate/polyvinylidene chloride composite coating liquid for subsequent use;
(2) composite coating liquid step (1) prepared utilizes and reverses the two sides of roller kiss-type coating method even spread to polypropylene film, and utilize warm air drying and method for far-infrared drying simultaneously, drying treatment under 80 DEG C of conditions, must this polypropylene-base compound dielectric film after complete drying.
The performance index of the laminated film obtained by the present embodiment are as follows:
Tensile strength is: 75.8MPa; Elongation at break: 45%; Volume specific resistance: 2.6 × 10
15Ω .cm; Under room temperature condition 1KHz frequency, specific inductivity is: 76, dielectric loss≤0.4% of condition elder generation, and laminated film is horizontal percent thermal shrinkage≤1% place 15min under 120 DEG C of conditions after, longitudinal percent thermal shrinkage≤2%.
Claims (2)
1. the membrane capacitance polypropylene-base compound dielectric film of blending gas phase aluminium sesquioxide, it is characterized in that, this dielectric film with thickness≤5 μm polypropylene film for basement membrane, and the compound coating in membrane surface coating thickness≤5 μm, described compound coating is formed by the preparation of raw material of following weight part: cellulose acetate 2-3, ferrocene 1-2, gas phase aluminium sesquioxide 3-5, alcohol ether solvent 10-15, polyether modified silicon oil 0.1-0.2, polyvinylpyrrolidone 1-2, N, N-N,N-DIMETHYLACETAMIDE 20-25, Macrogol 4000 .3-0.5, polyvinylidene chloride 10-12.
2. the preparation method of the polypropylene-base compound dielectric film of a kind of membrane capacitance blending gas phase aluminium sesquioxide as claimed in claim 1, it is characterized in that, described preparation method is:
(1) preparation of composite coating liquid: first poly(oxyethylene glycol) 400 is dropped in alcohol ether solvent, heated and stirred makes it dissolve completely, drop in solution by ferrocene, gas phase aluminium sesquioxide subsequently, ultrasonic agitation dispersion makes powder be uniformly dispersed completely, and gained dispersion liquid is for subsequent use; Then polyvinylidene chloride, cellulose acetate are dropped into N, in N-N,N-DIMETHYLACETAMIDE, heated and stirred makes solid substances dissolve completely, add the dispersion liquid of previously preparation again, after being uniformly mixed 20-30min, add other leftover materials, be uniformly mixed disposed slurry ball-milling processing 30-40min, and mixed slurry is carried out de-bubble process, obtain cellulose acetate/polyvinylidene chloride composite coating liquid for subsequent use;
(2) composite coating liquid step (1) prepared utilizes and reverses the two sides of roller kiss-type coating method even spread to polypropylene film, and utilize warm air drying and method for far-infrared drying simultaneously, drying treatment under 80-120 DEG C of condition, must this polypropylene-base compound dielectric film after complete drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478694.4A CN105038434A (en) | 2015-08-03 | 2015-08-03 | Gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510478694.4A CN105038434A (en) | 2015-08-03 | 2015-08-03 | Gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105038434A true CN105038434A (en) | 2015-11-11 |
Family
ID=54445421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510478694.4A Pending CN105038434A (en) | 2015-08-03 | 2015-08-03 | Gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105038434A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101978446A (en) * | 2008-03-19 | 2011-02-16 | 大金工业株式会社 | Coating composition for forming highly dielectric film and highly dielectric film |
| CN102336928A (en) * | 2011-07-08 | 2012-02-01 | 北京理工大学 | Flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and preparation method thereof |
| CN102617958A (en) * | 2012-04-12 | 2012-08-01 | 北京化工大学 | Polyvinylidene difluoride-trifluoroethylene/ nickel doped titanium dioxide composite film |
| CN104151618A (en) * | 2014-07-30 | 2014-11-19 | 安徽状元郎电子科技有限公司 | Special filler for high-dispersity capacitor film and preparation method of special filler |
| CN104479161A (en) * | 2013-11-21 | 2015-04-01 | 东莞市长安东阳光铝业研发有限公司 | Polyvinylidene fluoride/polypropylene composite film for film capacitor and preparation method |
| CN104530703A (en) * | 2015-01-20 | 2015-04-22 | 无锡顺铉新材料有限公司 | Low-dielectric constant polyimide and preparation method thereof |
| CN104672502A (en) * | 2015-03-04 | 2015-06-03 | 北京理工大学 | Cyanoethyl cellulose based high-dielectric flexible nano-composite film and preparation method thereof |
-
2015
- 2015-08-03 CN CN201510478694.4A patent/CN105038434A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101978446A (en) * | 2008-03-19 | 2011-02-16 | 大金工业株式会社 | Coating composition for forming highly dielectric film and highly dielectric film |
| CN102336928A (en) * | 2011-07-08 | 2012-02-01 | 北京理工大学 | Flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and preparation method thereof |
| CN102617958A (en) * | 2012-04-12 | 2012-08-01 | 北京化工大学 | Polyvinylidene difluoride-trifluoroethylene/ nickel doped titanium dioxide composite film |
| CN104479161A (en) * | 2013-11-21 | 2015-04-01 | 东莞市长安东阳光铝业研发有限公司 | Polyvinylidene fluoride/polypropylene composite film for film capacitor and preparation method |
| CN104151618A (en) * | 2014-07-30 | 2014-11-19 | 安徽状元郎电子科技有限公司 | Special filler for high-dispersity capacitor film and preparation method of special filler |
| CN104530703A (en) * | 2015-01-20 | 2015-04-22 | 无锡顺铉新材料有限公司 | Low-dielectric constant polyimide and preparation method thereof |
| CN104672502A (en) * | 2015-03-04 | 2015-06-03 | 北京理工大学 | Cyanoethyl cellulose based high-dielectric flexible nano-composite film and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Dang et al. | Study on microstructure and dielectric property of the BaTiO3/epoxy resin composites | |
| Yang et al. | Effect of coupling agents on the dielectric properties of CaCu3Ti4O12/PVDF composites | |
| CN105037777A (en) | Nano-barium-titanate-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of nano-barium-titanate-doped polypropylene-based composite dielectric film | |
| JP3221021U (en) | Dielectric substrate comprising non-sintered polytetrafluoroethylene and method of manufacturing the same | |
| CN108724900A (en) | A kind of preparation method of dry method microwave complex media plate | |
| CN106892659A (en) | A kind of anti-reduction huge dielectric constant medium material for multilayer ceramic capacitors | |
| CN101781115A (en) | X8R type multilayer ceramic capacitor dielectric material and preparation method thereof | |
| CN103936411B (en) | Use the method that annealing method prepares ultra-wide temperature stable type barium phthalate base dielectric material | |
| CN103936410A (en) | Manganese carbonate-doped high-temperature stable barium titanate-based dielectric material | |
| CN107172821A (en) | The method for manufacturing cover clad laminate of 2.2≤Dk of one kind ＜ 6.5 | |
| CN106938928A (en) | A kind of anti-reduction huge dielectric constant low loss, high value ceramic capacitor dielectric material | |
| CN104310986B (en) | A kind of high-k temperature-stable ceramic capacitor dielectric material | |
| CN105037776A (en) | Nano-carbon-sol-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of nano-carbon-sol-doped polypropylene-based composite dielectric film | |
| CN105131319A (en) | Nanometer lithium iron phosphate-doped polypropylene-based composite dielectric film for film capacitor, and preparation method thereof | |
| CN108003520B (en) | Preparation method of polyvinylidene fluoride titanium carbide nanosheet composite material with high dielectric property | |
| CN105037775A (en) | Nano-ceramic-powder-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of nano-ceramic-powder-doped polypropylene-based composite dielectric film | |
| CN105038433A (en) | Nanometer-titania-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of nanometer-titania-doped polypropylene-based composite dielectric film | |
| CN104446443B (en) | Wide operating temperature range medium material for multilayer ceramic capacitors and preparation method thereof | |
| CN103265283A (en) | High-temperature stable lead-free capacitor ceramic dielectric material and preparation method thereof | |
| CN105038434A (en) | Gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of gas-phase-aluminum-oxide-doped polypropylene-based composite dielectric film | |
| CN105086655A (en) | Nanometer indium tin oxide doped high-dielectric polypropylene-based composite dielectric film for film capacitor and preparation method thereof | |
| Benhadjala et al. | Improved performances of polymer-based dielectric by using inorganic/organic core-shell nanoparticles | |
| CN105085964A (en) | Nano-hydroxyapatite doped anti-static polypropylene-based composite dielectric film for film capacitor and preparation method thereof | |
| CN105037774A (en) | Nano-copper-doped polypropylene-based composite dielectric film used for film capacitors and preparation method of nano-copper-doped polypropylene-based composite dielectric film | |
| CN103864416A (en) | Method for preparing barium titanate ceramic capacitor medium at low sintering temperature |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |
|
| RJ01 | Rejection of invention patent application after publication |